Early life exposure to antibiotics and laxatives in relation to infantile atopic eczemaSarah El-Heis 1 DMSarah R Crozier1,2 PhDNicholas C Harvey1,3 PhDEugene Healy4 PhDKeith M Godfrey1,3,5 FMedSci1 Medical Research Council Lifecourse Epidemiology Centre, University of Southampton,Southampton, UK2 NIHR Applied Research Collaboration Wessex, Southampton Science Park, Innovation Centre, Southampton, UK3 NIHR Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK4 Dermatopharmacology, Faculty of Medicine, University of Southampton, Southampton, UK5 Developmental Sciences, University of Southampton, Southampton, UK